Essentially, LIFTTT allows you to add location-data to any IFTTT recipe. For example, you could have it send you an email when you arrive at home or automatically turn of a Belkin Wemo when you leave your house. It does this by sending an email with the text necessary to trigger an IFTTT recipe. It's a pretty simple concept that adds quite a bit of usefulness to IFTTT. You also have a ton of options to set up the triggers how you like them. That includes setting up specific times when things happen, the distance you have to go before triggers initiate, specific days, and plenty more.

That said, the amount of options you have also means it takes a little while to really understand how to use LIFTTT and the number of options you have to sift through to create a trigger detract a little from the simplicity that makes IFTTT great. Since it only works with email, that also means you have to set up a series of IFTTT recipes with email triggers in order to use it. Still, it gets the job done and it's worth a look if you've always wanted location-based triggers in your IFTTT recipes.